parse error at char 88: missing unit character in duration

[pete-leese]

Hi,

When I set the Restarts toggle, I receive lots of these errors:

parse error at char 88: missing unit character in duration

Could you please help me out? :)

[FUSAKLA]

Hi! That's unfortunate.
Can I ask what version of Grafana are you using?

If you use Grafana version lower than 5.3.0 it could be caused by the fact that Grafana added support for the $__interval variable in this version (CHANGELOG.MD).

[pete-leese]

I’m running the latest nightly build of 5.5

[FUSAKLA]

Hm, I see

Prometheus: Query for annotation always uses 60s step regardless of dashboard range, fixes #14795

https://github.com/grafana/grafana/blob/master/CHANGELOG.md#bug-fixes

This might be related.. Once I find the time I'll try the nightly build and see what we can do.
Meanwhile can you try to catch the request what is sent by Grafana? I suspect expansion of the $__interval variable.

[FUSAKLA]

I tried with grafana/grafana:latest docker image and there it worked also.
What version of prometheus do you use as a datasource?

[pete-leese]

I am using prometheus 2.70.

Worth noting;

I'm also using thanos
I'm not using docker for alert manager

[FUSAKLA]

So this happens with datasource set to Prometheus directly or to the Thanos query?

But mainly could you please try catching the query in the web console of your browser?
I'm not able to reproduce the issue unfortunately.

[pete-leese]

"api/datasources/proxy/5/api/v1/query_range?query=changes(process_start_time_seconds%7B%20instance%3D~%22ukasprom01%5C%5C.allocate-cloud%5C%5C.co%5C%5C.uk%22%7D%5B%24__interval%5D)%20%3E%200&start=1548897820&end=1548941040&step=20"

angular.js:12759 GET https://xxxxxxxxxxxxxxxx/api/datasources/proxy/5/api/v1/query_r…2%7D%5B%24__interval%5D)%20%3E%200&start=1548897820&end=1548941040&step=20 400
event_editor.ts:27 AnnotationSrv.query error
{data: {…}, status: 400, headers: ƒ, config: {…}, statusText: "", …}
config:
headers: {X-Grafana-Org-Id: 1, Accept: "application/json, text/plain, /"}
jsonpCallbackParam: "callback"
method: "GET"
paramSerializer: ƒ (e)
requestId: NaN
retry: 0
transformRequest: [ƒ]
transformResponse: [ƒ]
url: "api/datasources/proxy/5/api/v1/query_range?query=changes(process_start_time_seconds%7B%20instance%3D~%22ukasprom01%5C%5C.allocate-cloud%5C%5C.co%5C%5C.uk%22%7D%5B%24__interval%5D)%20%3E%200&start=1548897820&end=1548941040&step=20"
proto: Object
data:
error: "parse error at char 88: missing unit character in duration"
errorType: "bad_data"
message: "parse error at char 88: missing unit character in duration"
status: "error"
proto: Object
headers: ƒ (n)
message: "parse error at char 88: missing unit character in duration"
status: 400
statusText: ""
xhrStatus: "complete"
proto: Object

[FUSAKLA]

Ok, so Grafana does not expand the $__instance variable.
As a temporary workaround you can replace the $__interval with 2m or range selector of your choice.

I finally managed to reproduce it with the 6.0.0-beta1 version and reported the issue on grafana
grafana/grafana#15168

[FUSAKLA]

Ok, so it looks like I built this on a bug :)

I'll fix this asap

[pete-leese]

good job @FUSAKLA - seems to be working perfect now :)

[FUSAKLA]

Glad to hear, sorry for the inconvenience :)

I uploaded new revision to grafana.com so should be fixt even there.
Thanks for reporting!

[CRCinAU]

I get this exact issue on grafana-6.2.5-1.x86_64 from the official repos...

If I configure an alert, the same error occurs.

If I replace the $__interval with a value (say 30s), then the alert works properly.

[FUSAKLA]

Hi @CRCinAU, sorry for the late reply.

Could you post what exact error do you get? Or prtscr or something?
If I try adding an alert I get on Grafana 6.2.4 warning

This is possible that grafana really does not support.
I don't use Grafana alerting so never hit thought about this actually.

Maybe worth to add a feature request to Grafana to add support of templating variables in alerts?

[benhannel]

I'm using $__rate_interval in a query with an alert on it. The graph renders fine, and the values in the graph suggest the alert shouldn't be firing, but the alert fires with this error:

Execution Error: tsdb.HandleRequest() error bad_data: 1:135: parse error: missing unit character in duration

This happens for all alert queries where I try to use $__rate_interval.

[m0e33]

Are there any news on this? I'm getting the same error with grafana/grafana:latest.

[FUSAKLA]

Hi, sorry about the late reply, I somehow missed the notifications 😖

Ok so I'm tempted to drop usage of the $__interval at all to avoid any issues with it and instead add a variable to choose the range selector 🤔

Would that be an acceptable fix for you?